Cu-Al compound busbar refer to the busbar which has two different materials: copper and aluminum.Cu-Al compound busbar is majorly used as module output busbar. Aluminum terminal will be in module and for laser welding, and Copper terminal will be out of module and for bolt/nut connection. Cu-Al compound busbar is produced by molecular diffusion welding or other advanced technology, not by ultrasonic welding.
· More flexible structure
· More reliable for connection
· Can be solid and flexible
· Better electric conductivity
· Less thermal issue during using